Mississippi CDL General Knowledge Practice Questions - Mississippi Commercial Driver License General Knowledge Test Exam

What is the proper RPM range for shifting gears in most commercial diesel engines?

500 to 1,000 RPM 1,000 to 1,500 RPM (the "sweet spot" for most diesel engines) 2,500 to 3,500 RPM 4,000 to 5,000 RPM

Correct Answer:

1,000 to 1,500 RPM (the "sweet spot" for most diesel engines)

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